I missed out on the earlier discussions, so I hope I'm not
duplicating.

I agree with Ray, Walt, et al, that a microstrip launch would
probably work fine. To connect through an enclosure, you need a
connector with a longer threaded barrel. Check Lighthorse
Technologies @ www.rfconnectors.com

Ray Waugh wrote:
>
> I am not certain what Guido is trying to do here, but I can offer two
> suggestions:
>
> 1. Use a conventional SMA connector on a microstrip, and then make a
> transition from microstrip to CPW on the board, as shown in Figure 9 of
> AN1167 (attached). Mount your CPW package on the board's CPW line.
>
> 2. Take Walt's advice and use the EFJohnson edge mount connector. With
> ground fingers on both the top and bottom surfaces of the board, it
> makes a good CPW launcher. However, since it mounts to the edge of the
> board,
> I don't know how you'd integrate that into a housing.
>
> Ray
> ------------------------------------------------------
> Raymond W. Waugh - WSD Applications
> E-mail: ray_waugh@agilent.com
>
> USPS: Agilent Technologies
> Wireless Semiconductor Division
> 39201 Cherry Street, MS NK20
> Newark, California 94560
> ------------------------------------------------------
>
> -----Original Message-----
> From: Walt Kreiger [mailto:reiki@together.net]
> Sent: Friday, March 31, 2000 4:45 AM
> To: si-list@silab.eng.sun.com
> Cc: Jill Borchers-Johnston
> Subject: Re: [SI-LIST] : Coax connection to a CPW guide
>
> Guido,
> I might suggest you try something like a Johnson Components launcher,
> but
> the mechanics might be impossible. It is a very clean coax to microstrip
> launch, but you'd need some em simulation to get the CPW right. The
> microstrip launch is supposed to be good for 18GHZ; I've used them and
> they
> seem to be that good.
> To attach to the outside of a housing may not be easy; through a
> housing
> might be reasonable.
> I'm interested in the solution to your problem. Please, copy me on
> anybody's suggestions.
> Thanks,
> Walt Kreiger
> Applications Engineering
> Performance Test Div of Probe Technology
>
> ----- Original Message -----
> From: Guido Hunziker <guido@alumni.caltech.edu>
> To: <si-list@silab.eng.sun.com>
> Sent: Thursday, March 30, 2000 5:08 PM
> Subject: [SI-LIST] : Coax connection to a CPW guide
>
> > Folks,
> >
> > can anybody suggest a good supplier of a kit that would allow me to
> > interface from a coax connector (say, SMA) to a coplanar waveguide (good
> > up
> > to 10 GHz).
> >
> > My CPW guide is on a chip inside a package, and the connector would be
> > attached to the outside of the housing.
> > I used a product from Huber&Suhner many years ago, but that doesn't
> > exist
> > anymore.
> >
> > Suggestions?
> >
> > Thanks
> >
> > Guido Hunziker
> >
>
> [ATTACHMENT DUMPED BY SYSTEM DUE TO EXCESS SIZE]

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